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Finding the Fourth Proportional to 34,585.66, 47,730.63 and 19,681.66

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Solution

The fourth proportional to 34,585.66, 47,730.63 and 19,681.66 is: 27,162.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,585.66 : 47,730.63 = 19,681.66 : x
  2. Step 2: Convert to fraction form
    34,585.66/47,730.63 = 19,681.66/x
  3. Step 3: Cross multiply
    34,585.66x = 47,730.63 × 19,681.66
  4. Step 4: Simplify right side
    34,585.66x = 939,418,031.25
  5. Step 5: Solve for x
    x = 939,418,031.25/34,585.66
  6. Step 6: Final answer
    x = 27,162.07

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1.5x scale

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.