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Finding the Fourth Proportional to 34,359.52, 47,421.16 and 19,253.20

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Solution

The fourth proportional to 34,359.52, 47,421.16 and 19,253.20 is: 26,572.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,359.52 : 47,421.16 = 19,253.20 : x
  2. Step 2: Convert to fraction form
    34,359.52/47,421.16 = 19,253.20/x
  3. Step 3: Cross multiply
    34,359.52x = 47,421.16 × 19,253.20
  4. Step 4: Simplify right side
    34,359.52x = 913,009,077.71
  5. Step 5: Solve for x
    x = 913,009,077.71/34,359.52
  6. Step 6: Final answer
    x = 26,572.23

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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.