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Finding the Fourth Proportional to 12,698,681.16, 17,524,322.04 and 7,472,844.72

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Solution

The fourth proportional to 12,698,681.16, 17,524,322.04 and 7,472,844.72 is: 10,312,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,698,681.16 : 17,524,322.04 = 7,472,844.72 : x
  2. Step 2: Convert to fraction form
    12,698,681.16/17,524,322.04 = 7,472,844.72/x
  3. Step 3: Cross multiply
    12,698,681.16x = 17,524,322.04 × 7,472,844.72
  4. Step 4: Simplify right side
    12,698,681.16x = 130,956,537,428,193.62
  5. Step 5: Solve for x
    x = 130,956,537,428,193.62/12,698,681.16
  6. Step 6: Final answer
    x = 10,312,609.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.