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Finding the Fourth Proportional to 58,490.40, 87,744.88 and 19,044.32

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Solution

The fourth proportional to 58,490.40, 87,744.88 and 19,044.32 is: 28,569.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,490.40 : 87,744.88 = 19,044.32 : x
  2. Step 2: Convert to fraction form
    58,490.40/87,744.88 = 19,044.32/x
  3. Step 3: Cross multiply
    58,490.40x = 87,744.88 × 19,044.32
  4. Step 4: Simplify right side
    58,490.40x = 1,671,041,573.08
  5. Step 5: Solve for x
    x = 1,671,041,573.08/58,490.40
  6. Step 6: Final answer
    x = 28,569.50

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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.