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Finding the Fourth Proportional to 66,707.52, 92,075.04 and 38,424.48

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Solution

The fourth proportional to 66,707.52, 92,075.04 and 38,424.48 is: 53,036.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,707.52 : 92,075.04 = 38,424.48 : x
  2. Step 2: Convert to fraction form
    66,707.52/92,075.04 = 38,424.48/x
  3. Step 3: Cross multiply
    66,707.52x = 92,075.04 × 38,424.48
  4. Step 4: Simplify right side
    66,707.52x = 3,537,935,532.98
  5. Step 5: Solve for x
    x = 3,537,935,532.98/66,707.52
  6. Step 6: Final answer
    x = 53,036.53

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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.