Home / 66,424.40-99,624.30-19,666.16

Finding the Fourth Proportional to 66,424.40, 99,624.30 and 19,666.16

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Solution

The fourth proportional to 66,424.40, 99,624.30 and 19,666.16 is: 29,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,424.40 : 99,624.30 = 19,666.16 : x
  2. Step 2: Convert to fraction form
    66,424.40/99,624.30 = 19,666.16/x
  3. Step 3: Cross multiply
    66,424.40x = 99,624.30 × 19,666.16
  4. Step 4: Simplify right side
    66,424.40x = 1,959,227,423.69
  5. Step 5: Solve for x
    x = 1,959,227,423.69/66,424.40
  6. Step 6: Final answer
    x = 29,495.60

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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.