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Finding the Fourth Proportional to 62,005.80, 93,008.70 and 19,885.80

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Solution

The fourth proportional to 62,005.80, 93,008.70 and 19,885.80 is: 29,828.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,005.80 : 93,008.70 = 19,885.80 : x
  2. Step 2: Convert to fraction form
    62,005.80/93,008.70 = 19,885.80/x
  3. Step 3: Cross multiply
    62,005.80x = 93,008.70 × 19,885.80
  4. Step 4: Simplify right side
    62,005.80x = 1,849,552,406.46
  5. Step 5: Solve for x
    x = 1,849,552,406.46/62,005.80
  6. Step 6: Final answer
    x = 29,828.70

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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.