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Finding the Fourth Proportional to 74,681.91, 112,019.16 and 27,931.14

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Solution

The fourth proportional to 74,681.91, 112,019.16 and 27,931.14 is: 41,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,681.91 : 112,019.16 = 27,931.14 : x
  2. Step 2: Convert to fraction form
    74,681.91/112,019.16 = 27,931.14/x
  3. Step 3: Cross multiply
    74,681.91x = 112,019.16 × 27,931.14
  4. Step 4: Simplify right side
    74,681.91x = 3,128,822,840.64
  5. Step 5: Solve for x
    x = 3,128,822,840.64/74,681.91
  6. Step 6: Final answer
    x = 41,895.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.