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Finding the Fourth Proportional to 30,670,708.80, 45,966,988.80 and 16,300,660.80

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Solution

The fourth proportional to 30,670,708.80, 45,966,988.80 and 16,300,660.80 is: 24,430,224.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670,708.80 : 45,966,988.80 = 16,300,660.80 : x
  2. Step 2: Convert to fraction form
    30,670,708.80/45,966,988.80 = 16,300,660.80/x
  3. Step 3: Cross multiply
    30,670,708.80x = 45,966,988.80 × 16,300,660.80
  4. Step 4: Simplify right side
    30,670,708.80x = 749,292,292,426,199
  5. Step 5: Solve for x
    x = 749,292,292,426,199/30,670,708.80
  6. Step 6: Final answer
    x = 24,430,224.20

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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.