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Finding the Fourth Proportional to 8,905,274.68, 12,289,302.70 and 4,830,893.68

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Solution

The fourth proportional to 8,905,274.68, 12,289,302.70 and 4,830,893.68 is: 6,666,646.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905,274.68 : 12,289,302.70 = 4,830,893.68 : x
  2. Step 2: Convert to fraction form
    8,905,274.68/12,289,302.70 = 4,830,893.68/x
  3. Step 3: Cross multiply
    8,905,274.68x = 12,289,302.70 × 4,830,893.68
  4. Step 4: Simplify right side
    8,905,274.68x = 59,368,314,745,036.93
  5. Step 5: Solve for x
    x = 59,368,314,745,036.93/8,905,274.68
  6. Step 6: Final answer
    x = 6,666,646.10

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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.